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Shorthandsymbol:
ENDO
Item number: 40-1130
Format: Petri Dish, 90mm
Colour: Light pink
Storageconditions:
Dry, in closed bag at 4-10°C - avoid exposure to light
Shelf-life: 2 Months
pH: 7.5 ± 0.2 bei 25°C
Lactose-Fuchsin-Sulphite-Agar (Endo-Agar) (ENDO)
Intented use and fields of application
Moderately selective differential medium for the isolation and differentiation of Enterobacteriaceae.
The Fuchsin contained in the Lactose-Fuchsin-Sulphite agar is liberated by the reaction with acids and acethaldehydes, both are metabolites oflactose-fermenting bacteria. The liberated Fuchsin results in a red colour with a greenish metallic sheen of the colonies of coliform microorganisms,whereas the Endo agar is dyed similarily. In contrast, lactose-negative microorganisms appear in colourless colonies before the light pinkbackground of the nutrient medium. Simultaneously, the fuchsin sulfite partially inhibits the growth of gram-positive bacteria.
Typical composition in g/l
in g per 1 Litre Nutrient medium
Pancreatic-digest of Peptone (Meat, Gelatine) 7.7
Yeast Extract 2.3
Lactose 10.0
Dipotassium Hydrogen Phosphate 3.0
Potassium Dihydrogen Phosphate 0.5
New Fuchsin 0.15
Sodium Sulphite 1.0
Agar 10.0
*Adjusted as required to meet performance standards
Page 1/2
Xebios Diagnostics GmbHTelleringstraße 49 | D-40597 DüsseldorfT. +49 (0) 211 78 88 07 - 00E. info@xebios.com
Version: 20/03/2019
Xebios is certified according to DIN EN ISO 9001. Our microbiological quality control is carriedout by a microbiological laboratory accredited according to EN ISO/IEC 17025, in accordancewith EN ISO 11133. (registration number of certificate: RvA-L 614)
www.xebios.com
Microbiological quality control
The Microbiological Performance Test is carried out in accordance with the requirements of DIN EN ISO 11133.
ProductivityIncubation Conditions: 20±4 Hours at 36±2°C; Inoculum Concentration: 80–120 CFU
Organism Type Strain Specification Colony morphology
Escherichia coli ATCC 25922/WDCM 00013 50–130 % Deep red colonies
Enterobacter aerogenes ATCC 13048/WDCM 00175 50–130 % Red to reddish, hemispherical, slimy colonies
SelectivityIncubation Conditions: 20±4 Hours at 37±1°C; Inoculum Concentration: 10,000–1,000,000 CFU
Organism Type Strain Specification Colony morphology
Staphylococcus aureus ATCC 25923/WDCM 00034 Complete inhibition -
Microbial ContaminationIncubation Conditions: 5–7 Days at 20–25°C and 5–7 Days at 30–35°C
Specification
No microbial contamination
Page 2/2
Xebios Diagnostics GmbHTelleringstraße 49 | D-40597 DüsseldorfT. +49 (0) 211 78 88 07 - 00E. info@xebios.com
Version: 20/03/2019
Xebios is certified according to DIN EN ISO 9001. Our microbiological quality control is carriedout by a microbiological laboratory accredited according to EN ISO/IEC 17025, in accordancewith EN ISO 11133. (registration number of certificate: RvA-L 614)
www.xebios.com
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